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Posted to commits@rocketmq.apache.org by GitBox <gi...@apache.org> on 2022/12/01 04:04:22 UTC
[GitHub] [rocketmq] ShadowySpirits opened a new issue, #5626: Optimize DefaultMessageStore#getEarliestMessageTime
ShadowySpirits opened a new issue, #5626:
URL: https://github.com/apache/rocketmq/issues/5626
When I enable broker metrics I found this error in store.log:
```
selectMappedBuffer request pos invalid, request pos: 0, size: 8388608, fileFromoffset: 0
```
It is because DefaultMessageStore#getEarliestMessageTime tries to get a buffer of 2 * max message size which defaults to 8M. In the corner case, I have some tiny messages which together are less than 8M, so I get this error.
IMO, 8M is too large in this use case, and We should check offset before getting store time.
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[GitHub] [rocketmq] RongtongJin closed issue #5626: Optimize DefaultMessageStore#getEarliestMessageTime
Posted by GitBox <gi...@apache.org>.
RongtongJin closed issue #5626: Optimize DefaultMessageStore#getEarliestMessageTime
URL: https://github.com/apache/rocketmq/issues/5626
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[GitHub] [rocketmq] ShadowySpirits commented on issue #5626: Optimize DefaultMessageStore#getEarliestMessageTime
Posted by GitBox <gi...@apache.org>.
ShadowySpirits commented on issue #5626:
URL: https://github.com/apache/rocketmq/issues/5626#issuecomment-1333136862
@RongtongJin Please take a look.
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